OEM Carrier Defrost Control Board HK32EA007 for Model PH13NA024000ABAA

This is the genuine OEM Carrier defrost control board (part number HK32EA007), factory-specified for the Carrier PH13NA024000ABAA heat pump. The defrost control board manages the entire defrost cycle — monitoring outdoor coil temperature, timing defrost intervals, and commanding the reversing valve and auxiliary heat to activate during the defrost sequence. When this board fails, you'll typically see excessive ice accumulation on the outdoor coil, the unit failing to enter or exit defrost mode, or the system short-cycling with fault codes related to defrost lockout.

• Part Number: HK32EA007 | Also cross-references 1173636 and 1177927 | Direct OEM factory replacement
• OEM vs Generic: Genuine OEM boards are programmed with Carrier's exact defrost timing algorithms and sensor thresholds. Aftermarket boards may use approximated logic, leading to premature defrost cycles, insufficient frost removal, and accelerated compressor wear over time.
• Install Difficulty: 3/5 — Requires disconnecting 24V control wiring and line-voltage connectors. Always shut off power at the disconnect before servicing. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, a phone or camera to photograph all wiring harness positions before removal. Match connector positions exactly on reinstall.
• Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered by 3 PM local time.

Compatibility: Engineered as a direct drop-in replacement for the Carrier PH13NA024000ABAA split-system heat pump. This board also cross-references Bryant and Payne heat pump models sharing the HK32EA007 specification. Confirm your existing board's part number on the label before ordering. Not sure it fits? Our HVAC parts team verifies fitment before you buy — contact us before placing your order.